System and method for supporting odd lot trading

Abstract

The object of the present invention is to provide technology that enable the securities firm to appropriately execute trading orders of the odd lot without making the price fluctuation risk and etc. come to the surface. First, odd lot buying orders or odd lot selling orders for a particular stock company is received (step S 5 ). Next, it is judged whether or not the number of total buying order stocks of the odd lot or the number of total selling order stocks of the odd lot exceeds a predetermined threshold that is determined according to a predetermined rule (step S 9 ). If it is judged that the number of total buying order stocks of the odd lot or the number of total selling order stocks of the odd lot exceeds a predetermined threshold that is determined according to a predetermined rule, a buying order of the round lot stock number defined for the particular stock company for the odd lot buying orders, a selling order of the round lot stock number for the odd lot selling orders is executed (step S 11 ). Then, it is judged whether the number of total buying order stocks of the odd lot or the number of total buying order stocks of the odd lot is over the round lot stock number (step S 17 ). If it is over the round lot stock number, the minimum number of ordered stocks among the odd lot buying orders or the odd lot selling orders is provided to all investors and unassigned stocks are provided to each remainder of the order according to the weighted average (step S 19 ).

What is claimed is:  
     
         1 . A method for supporting a trading of an odd lot that is less than a round lot stock number determined in every stock company, said method comprising the steps of: 
 receiving from a customer, an odd lot selling order or an odd lot buying order for a particular stock company;    judging whether or not a number of total stocks of said odd lot selling orders or a number of total stocks of said odd lot buying orders received at said receiving step is over a threshold value that is less than said round lot stock number and is determined by a predetermined rule; and    if it is judged at said judging step that the number of total stocks of said odd lot selling orders or the number of total stocks of said odd lot buying orders is over said threshold, outputting a selling order of said round lot stock number defined for said particular stock company for said odd lot selling orders or a buying order of said round lot stock number defined for said particular stock company for said odd lot buying orders.    
     
     
         2 . The method set forth in  claim 1 , wherein said predetermined rule is a rule in which a trading fee of said odd lot buying orders or said odd lot selling orders is equal to or higher than a risk amount for a stock number which is a difference between said round lot stock number and said threshold.  
     
     
         3 . The method set forth in  claim 2 , wherein said risk amount is determined by a limited price range or a price itself.  
     
     
         4 . The method set forth in  claim 1 , wherein said predetermined rule is a rule based on a trading volume of stocks of said particular stock company during a predetermined period.  
     
     
         5 . The method set forth in  claim 1 , further comprising the steps of: 
 judging whether or not said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders that are received at said receiving step is over said round lot stock number of said particular stock company;    if it is judged at said second judging step that said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders is over said round lot stock number, providing a minimum number of ordered stocks of said odd lot buying orders or said odd lot selling orders to each customer who makes said odd lot buying order or said odd lot selling order; and    providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided at said first providing step from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         6 . The method set forth in  claim 1 , further comprising the steps of: 
 judging whether or not said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders that are received at said receiving step is over said round lot stock number of said particular stock company;    if it is judged at said second judging step that said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders is over said round lot stock number, judging whether or not it is possible to provide a minimum number of ordered stocks of said odd lot buying orders or said odd lot selling orders to each customer who makes said odd lot buying order or said odd lot selling order;    if it is judged at said third judging step that it is impossible to provide, providing one stock to said each customer; and    providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided at said first providing step from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         7 . A method for supporting a trading of an odd lot that is less than a round lot stock number determined in every stock company, said method comprising the steps of: 
 judging whether or not a number of total stocks of odd lot buying orders or a number of total stocks of odd lot selling orders that are received from customers is over said round lot stock number of said particular stock company;    if it is judged at said judging step that said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders is over said round lot stock number, judging whether or not it is possible to provide a minimum number of ordered stocks of said odd lot buying orders or said odd lot selling orders to each customer who makes said odd lot buying order or said odd lot selling order;    if it is judged at said second judging step that it is possible to provide, providing said minimum number of said ordered stocks of said odd lot buying orders or said odd lot selling orders to said each customer who makes said odd lot buying order or said odd lot selling order; and    providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided at said first providing step from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         8 . The method set forth in  claim 7 , further comprising the steps of: 
 if it is judged at said second judging step that it is impossible to provide, providing one stock to said each customer; and    providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided at said first providing step from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         9 . A storage medium for storing a program for causing a computer to support a trading of an odd lot that is less than a round lot stock number determined in every stock company, said program comprising the steps of: 
 receiving from a customer, an odd lot selling order or an odd lot buying order for a particular stock company;    judging whether or not a number of total stocks of said odd lot selling orders or a number of total stocks of said odd lot buying orders received at said receiving step is over a threshold value that is less than said round lot stock number and is determined by a predetermined rule; and    if it is judged at said judging step that the number of total stocks of said odd lot selling orders or the number of total stocks of said odd lot buying orders is over said threshold, outputting a selling order of said round lot stock number defined for said particular stock company for said odd lot selling orders or a buying order of said round lot stock number defined for said particular stock company for said odd lot buying orders.    
     
     
         10 . The storage medium set forth in  claim 9 , wherein said predetermined rule is a rule in which a trading fee of said odd lot buying orders or said odd lot selling orders is equal to or higher than a risk amount for a stock number which is a difference between said round lot stock number and said threshold.  
     
     
         11 . The storage medium set forth in  claim 10 , wherein said risk amount is determined by a limited price range or a price itself.  
     
     
         12 . The storage medium set forth in  claim 9 , wherein said predetermined rule is a rule based on a trading volume of stocks of said particular stock company during a predetermined period.  
     
     
         13 . The storage medium set forth in  claim 9 , said program further comprising the steps of: 
 judging whether or not said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders that are received at said receiving step is over said round lot stock number of said particular stock company;    if it is judged at said second judging step that said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders is over said round lot stock number, providing a minimum number of ordered stocks of said odd lot buying orders or said odd lot selling orders to each customer who makes said odd lot buying order or said odd lot selling order; and    providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided at said first providing step from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         14 . The storage medium set forth in  claim 9 , said program further comprising the steps of: 
 judging whether or not said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders that are received at said receiving step is over said round lot stock number of said particular stock company;    if it is judged at said second judging step that said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders is over said round lot stock number, judging whether or not it is possible to provide a minimum number of ordered stocks of said odd lot buying orders or said odd lot selling orders to each customer who makes said odd lot buying order or said odd lot selling order;    if it is judged at said third judging step that it is impossible to provide, providing one stock to said each customer; and    providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided at said first providing step from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         15 . A storage medium for storing a program for causing a computer to support a trading of an odd lot that is less than a round lot stock number determined in every stock company, said program comprising the steps of: 
 judging whether or not a number of total stocks of odd lot buying orders or a number of total stocks of odd lot selling orders that are received from customers is over said round lot stock number of said particular stock company;    if it is judged at said judging step that said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders is over said round lot stock number, judging whether or not it is possible to provide a minimum number of ordered stocks of said odd lot buying orders or said odd lot selling orders to each customer who makes said odd lot buying order or said odd lot selling order;    if it is judged at said second judging step that it is possible to provide, providing said minimum number of said ordered stocks of said odd lot buying orders or said odd lot selling orders to said each customer who makes said odd lot buying order or said odd lot selling order; and    providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided at said first providing step from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         16 . The storage medium set forth in  claim 15 , said program further comprising the steps of: 
 if it is judged at said second judging step that it is impossible to provide, providing one stock to said each customer; and    providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided at said first providing step from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         17 . A system for supporting a trading of an odd lot that is less than a round lot stock number determined in every stock company, comprising: 
 means for receiving from a customer, an odd lot selling order or an odd lot buying order for a particular stock company;    means for judging whether or not a number of total stocks of said odd lot selling orders or a number of total stocks of said odd lot buying orders received by said means for receiving is over a threshold value that is less than said round lot stock number and is determined by a predetermined rule; and    means for outputting a selling order of said round lot stock number defined for said particular stock company for said odd lot selling orders or a buying order of said round lot stock number defined for said particular stock company for said odd lot buying orders if it is judged by said means for judging that the number of total stocks of said odd lot selling orders or the number of total stocks of said odd lot buying orders is over said threshold.    
     
     
         18 . The system set forth in  claim 17 , wherein said predetermined rule is a rule in which a trading fee of said odd lot buying orders or said odd lot selling orders is equal to or higher than a risk amount for a stock number which is a difference between said round lot stock number and said threshold.  
     
     
         19 . The system set forth in  claim 18 , wherein said risk amount is determined by a limited price range or a price itself.  
     
     
         20 . The system set forth in  claim 17 , wherein said predetermined rule is a rule based on a trading volume of stocks of said particular stock company during a predetermined period.  
     
     
         21 . The system set forth in  claim 18 , further comprising: 
 second judging means for judging whether or not said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders that are received by said means for receiving is over said round lot stock number of said particular stock company;    first providing means for providing a minimum number of ordered stocks of said odd lot buying orders or said odd lot selling orders to each customer who makes said odd lot buying order or said odd lot selling order if it is judged by said second judging means that said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders is over said round lot stock number; and    second providing means for providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided by said first providing means from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         22 . The system set forth in  claim 17 , further comprising: 
 second judging means for judging whether or not said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders that are received by said means for receiving is over said round lot stock number of said particular stock company;    third judging means for judging whether or not it is possible to provide a minimum number of ordered stocks of said odd lot buying orders or said odd lot selling orders to each customer who makes said odd lot buying order or said odd lot selling order if it is judged by said second judging means that said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders is over said round lot stock number; first providing means for providing one stock to said each customer if it is judged at said third judging means that it is impossible to provide; and    second providing means for providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided by said first providing means from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         23 . A system for supporting a trading of an odd lot that is less than a round lot stock number determined in every stock company, comprising: 
 first judging means for judging whether or not a number of total stocks of odd lot buying orders or a number of total stocks of odd lot selling orders that are received from customers is over said round lot stock number of said particular stock company;    second means for judging whether or not it is possible to provide a minimum number of ordered stocks of said odd lot buying orders or said odd lot selling orders to each customer who makes said odd lot buying order or said odd lot selling order if it is judged by said first judging means that said number of said total stocks of said odd lot buying orders or said number of said total stocks of said odd lot selling orders is over said round lot stock number;    first providing means for providing said minimum number of said ordered stocks of said odd lot buying orders or said odd lot selling orders to said each customer who makes said odd lot buying order or said odd lot selling order if it is judged by said second judging means that it is possible to provide; and    second providing means for providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided at said first providing step from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.    
     
     
         24 . The system set forth in  claim 23 , further comprising: 
 third providing means for providing one stock to said each customer if it is judged by said second judging means that it is impossible to provide; and    forth providing means for providing a number of remainder stocks that is calculated by subtracting a number of all stocks provided at said first providing step from said round lot stock number, to a customer who has a remainder of the order, according to a second predetermined rule.